Principal Frank Zagari, who has led the school for 16 years, and Assistant Principal Michael Lyons are both being reassigned.

This the second middle school shakeup in the past week. Cheryl Cendan was reassigned from Millennium 6-12 last week and is expected to resign. School district officials accused her of running a business where students paid money for concessions or to get out of class on certain days.

At Indian Ridge, Zagari and Lyons are leaving for reasons unrelated to each other, said Lisa Maxwell, executive director of the Broward Principals and Assistants Association.

Maxwell said Zagari, 63, wanted a change.

“He’s been there for many, many years. He’s in the final phases of his career, heading toward retirement and he wanted a different experience, something that’s not as intense as that particular school,” she said.

The move comes after a former clerk at the school, Katherine Mastrianni, sent a letter to the school district in April accusing Cendan and her family members of running...

It’s unclear why Lyons is leaving. A school district spokeswoman refused to answer a question about his status, and Maxwell said he’s not a member of the administrators’ association, so she’s not involved in his reassignment.

Lyons couldn’t be reached for comment.

Indian Ridge, a consistently A-rated school, has about 1,900 students, making it the third largest middle school in the county behind Falcon Cove in Weston and Lyons Creek Middle in Coconut Creek.

“It has a large student population, and it is really a pressure cooker,” Maxwell said.

Jermaine Fleming, director of the district’s Office of School Performance and Accountability, will serve as interim principal for the rest of the month, according to a letter sent to parents. A new principal is expected to be named June 26.